When this tool is useful
Creating a read-only visual copy of a completed AcroForm for routine sharing when recipients do not need to edit its fields.
How local processing works
The browser loads the form, refreshes field appearances, draws those appearances into the pages, removes the interactive widgets, and saves a new PDF.
How to use it
- Choose the source files.
- Review the available settings and page order.
- Process locally, inspect the result, and download it.
Important limitations
Flattening is irreversible in the output and does not preserve field editing, calculations, JavaScript, or digital-signature validity. XFA and unusual forms may not be supported; keep the original.
Private by design
Your files stay in this browser. The tool does not upload the source or output to our servers.
Questions and answers
Does this tool upload my files?
No. Processing happens in your browser; closing the page clears the working session.
Will the output always match the source exactly?
Flattening is irreversible in the output and does not preserve field editing, calculations, JavaScript, or digital-signature validity. XFA and unusual forms may not be supported; keep the original.
Concrete input and output example
Input a completed 12-field AcroForm and flatten it. Reopen the download to confirm the visible values remain while fields are no longer editable; keep the original because signatures and calculations are not preserved.
Browser compatibility notes
Reviewed against the implementation and required web APIs on 2026-08-12. Use a current browser where these APIs are available and verify important output on your device.
- Chrome / Edge (current desktop)
- Requires local PDF parsing, worker/canvas APIs where applicable, document creation, and Blob download.
- Firefox (current desktop)
- Uses the local PDF workflow; always verify the generated download in its destination viewer.
- Safari (current desktop)
- Uses the same local workflow; large page sets can have a lower practical memory ceiling.
A tool-specific question
Will flattening preserve a digital signature?
No. Rewriting and flattening can invalidate or remove signature workflows, calculations, JavaScript, and field editing. Preserve the signed original.